(ˈmɛsəʊˌskeɪl) adj (Physical Geography) relating to meteorological phenomena of medium size, usually classified as those which have a horizontal extent of between 5 and 100 kilometres
mesoscale
mesoscale
A scale used in meteorology that extends from approximately 0.7 to 70 miles (1 to 100 km). Mesoscale features include such things as thunderstorms, sea breezes, gust fronts, and macrobursts.